This is the high temperature map from Monday. Much of the East is warm to unseasonably warm, while cold air rules the Rockies. Look at the afternoon high temperature in Denver of 35. They had 3″ of snow in Denver and up to a foot of snow in some of the hills to the west. Here’s snowfall totals. You can see the cool air from MN across the Dakotas to Wyoming and down into New Mexico. Dalhart TX had a high of 51, a cooler day than we have seen in Lower MI.